Yonaguni standoff

The Yonaguni standoff was a 2014 standoff between the navy of the United States and China's navy off the coast of Taiwan. Chinese destroyers were sent to Yonaguni island, claimed by Japan, to enforce their claim to the island, which lay along a shipping route. The standoff caused a crisis that saw Japan and China be on the brink of war, with the US Seventh Fleet being deployed to Guam, being ready to intervene in the case of war.

History
Yonaguni is an island just off the eastern coast of Taiwan which is claimed by Japan, being important due to its location along a shipping route. China laid a claim to the island contradicting Japan's sovereignty, and in 2014 they sent two destroyers to the island to enforce their claim. Prime Minister Oshiro of Japan asked for President Garrett Walker of the United States to send a portion of the US Seventh Fleet to pressure the Chinese into withdrawing their ships. US Vice-President Frank Underwood suggested a strong verbal condemnation of China's claims, and Matthews opened up talks with Prime Minister Oshiro to coordinate operations with the Japanese Navy.

As the crisis escalated, Japan prepared to deploy three destroyers and a light cruiser to the standoff with the Chinese, and the Seventh Fleet was deployed to Guam, where it was supposed to be ready to intervene in the case of any action by the Chinese. Walker negotiated with President Qian of China and Prime Minister Oshiro of Japan, but the crisis was so serious that the military proposed tactical drone strikes in the South China Sea. At the same time, news broke about the United States government's connections to money laundering by billionaire Raymond Tusk, who was business partners with Chinese businessman Xander Feng, who was involved in back-channel negotiations with the United States during the trade war. The US-China trade war and the standoff led to pressure on both countries, and tensions grew to their largest level in many years. When talks did not seem to be making progress, Walker had a carrier group reposition near Okinawa, and it would allow American planes to carry out airstrikes against the Chinese, and at that point the Americans only had two months' supply of samarium (a rare earth element controlled mostly by China) left. The standoff became intense as the two sides continued to prepare for any possibility, and when the United States decided to offer Feng asylum, the Chinese doubled their forces in the standoff. Tensions were high, but after the resignation of President Garrett Walker and the acession of Frank Underwood to the presidency of the United States, Underwood had a conversation with President Qian over the phone and agreed to withdraw the US Seventh Fleet from Japanese waters. The Chinese agreed to withdraw their navy as well, ending the crisis.